Force diagram builder
Set the forces on a block. Arrows show their directions; the resultant controls acceleration.
Your experiment
Change any value to update the result. Use the stated units.
Enable JavaScript to calculate with your own values.
Why it works
Fx = right − left; Fy = up − down; a = Fnet/m
Assumptions and limits
Forces act on one point-like body. Rotation is ignored. Upward force and weight are entered explicitly rather than inferred.